February 19, 2017

Homework Help: Science

Posted by Moriam on Sunday, April 22, 2012 at 5:35am.

A ball of mass 0.2kg falls from a height of 45m. On striking the ground it rebounds in 0.1s with two-thirds of the velocity with which it struck the ground. Calculate i the momentum change on hitting the ground, ii the forcn on the ball due to the impact.

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